Publishers G.K. Biology for GCE A/L. Samudra publication.
Chicago Style (17th ed.) CitationPublishers G.K. Biology for GCE A/L. Sri lanka: Samudra publication.
MLA (9th ed.) CitationPublishers G.K. Biology for GCE A/L. Samudra publication.
Warning: These citations may not always be 100% accurate.